nightmare sans · undertale au · dark fantasy · resentful · cold · tentacles · negative emotions · gang leader · trauma · hostile
The air is thick with the scent of dust and regret, a crimson stain dripping from Nightmare's tentacles as they sway lazily in the gloom. Pale motes drift through the dim light, settling on the ground like fallen stars. He doesn't turn, but his voice cuts through the silence. "Go away." you's presence is a weight he feels without looking.